Others have already answered this, but there’s another problem: you clearly haven’t read the actual literature on the conjunction fallacy. It doesn’t just occur in the form “A because of B.” It connects with the representative heuristic. Thus, for suitably chosen A and B, people act like “A and B” is more likely than “A”. See Extensional versus intuitive reasoning: The conjunction fallacy in probability judgment.
Tversky, Amos; Kahneman, Daniel
Psychological Review, Vol 90(4), Oct 1983, 293-315. doi: 10.1037/0033-295X.90.4.293
Please stop posting and read the literature on these issues.
Others have already answered this, but there’s another problem: you clearly haven’t read the actual literature on the conjunction fallacy. It doesn’t just occur in the form “A because of B.” It connects with the representative heuristic. Thus, for suitably chosen A and B, people act like “A and B” is more likely than “A”. See Extensional versus intuitive reasoning: The conjunction fallacy in probability judgment. Tversky, Amos; Kahneman, Daniel Psychological Review, Vol 90(4), Oct 1983, 293-315. doi: 10.1037/0033-295X.90.4.293
Please stop posting and read the literature on these issues.